English verb conjugation
SHOULD OVERFISH

Regular verb: overfish - overfished - overfished

Affirmation

Simple form	V-ing form
I'd overfish you'd overfish he'd overfish we'd overfish you'd overfish they'd overfish	I'd be overfishing you'd be overfishing he'd be overfishing we'd be overfishing you'd be overfishing they'd be overfishing
Perfect	V-ing perfect
I should've overfished you should've overfished he should've overfished we should've overfished you should've overfished they should've overfished	I should've been overfishing you should've been overfishing he should've been overfishing we should've been overfishing you should've been overfishing they should've been overfishing

Negation

Simple form	V-ing form
I shouldn't overfish you shouldn't overfish he shouldn't overfish we shouldn't overfish you shouldn't overfish they shouldn't overfish	I shouldn't be overfishing you shouldn't be overfishing he shouldn't be overfishing we shouldn't be overfishing you shouldn't be overfishing they shouldn't be overfishing
Perfect	V-ing perfect
I shouldn't have overfished you shouldn't have overfished he shouldn't have overfished we shouldn't have overfished you shouldn't have overfished they shouldn't have overfished	I shouldn't have been overfishing you shouldn't have been overfishing he shouldn't have been overfishing we shouldn't have been overfishing you shouldn't have been overfishing they shouldn't have been overfishing

Interrogative form

Simple form	V-ing form
should I overfish? should you overfish? should he overfish? should we overfish? should you overfish? should they overfish?	should I be overfishing? should you be overfishing? should he be overfishing? should we be overfishing? should you be overfishing? should they be overfishing?
Perfect	V-ing perfect
should I have overfished? should you have overfished? should he have overfished? should we have overfished? should you have overfished? should they have overfished?	should I have been overfishing? should you have been overfishing? should he have been overfishing? should we have been overfishing? should you have been overfishing? should they have been overfishing?

Interro-negative form

Simple form	V-ing form
shouldn't I overfish? shouldn't you overfish? shouldn't he overfish? shouldn't we overfish? shouldn't you overfish? shouldn't they overfish?	shouldn't I be overfishing? shouldn't you be overfishing? shouldn't he be overfishing? shouldn't we be overfishing? shouldn't you be overfishing? shouldn't they be overfishing?
Perfect	V-ing perfect
shouldn't I have overfished? shouldn't you have overfished? shouldn't he have overfished? shouldn't we have overfished? shouldn't you have overfished? shouldn't they have overfished?	shouldn't I have been overfishing? shouldn't you have been overfishing? shouldn't he have been overfishing? shouldn't we have been overfishing? shouldn't you have been overfishing? shouldn't they have been overfishing?